Fuse-block.



C. Nl JHNSGBR FUSE BLOCK.

APPLIGATGN 1? 533 SEPT. 17, i913.

Eatente July "F, QL.

WITNESSES FUSE-31300K.

Specification of Letters Patent.

Application filed September l?, 193. Serial No. 790,209.

To all -1/1/1 om it muy concer/1,:

lle it known tlmt L (hilcs'rnn il. JOHNSON, :i citizen o l the UnitedStntes, retiiding ut t'hicuern in thev county of Cook und Stute ofillinois7 hure invented certuin new :ind useful improvements inFuse-Blocks, of which the following` is u specification.

rlhis invention has relation to fuse blocks, :und it consists in thenovel tentures herein- :itter described und cluilned.

An object ot the invention is to provide luse blocks of simple designadapted to hold fuse plugs so ns the plugs muy huvc direct contact. withbus bers or hns our sections.

A 'lin'ther object ot" the invention is to so errunge the elements ol?the device :is to prevent anythingy lroin coming in contact, with thebus bers or bus bur sections und thereby reducing` danger of shortcircuit from the inuin line or circuit.

'W ith these und other objects in view7 the invention consists incertain novel features of construction :is hereinafter shown unddescribed,` und then pznfliculnrly pointed outy in the claim and in thedrawings illustrutivc of the preferred embodiment of the invention.

ltiejure 1 is a front elevation of the hlock. Fie", 2 is u rearelevation of the suine. Figi'. is u longitudinal sectionnl View of thenume. Fig. 4 is u truneverse sectional view or' the saine.A

` Corresponding nndg'ike partel :1re referred to/'in thel :tolloiyincydescription und indieuted in ull the Viewl ol the accompanying drew ingsby the sinne reference cl-iurncters.

The block l, is ntilde ot cluy7 porcelain or other suitablenon-conducting` nniteriul, and :is shown in Figs. l to .4 inclusive isyprovided upon its under side with transversely disposed grooves 2,which are adapted to recivethe bus bars or bus leur sections 3. Thesebus bars :tre connected with the source electric supply in anysuitable:"niunner and when bus bar sections are provided in eizch block,the sections of one block :ire connected with the sections of theadjacent block in any suitable manner or the ends of the suid hue her,sections muy brought together whereby the contact of the sectionsthroughout the. series of sections is cour pletcd. rflic hlocli l isprovided with openings l which pass transversely through the suine andopen :it their inner ends to the `grooves i! hereiioefore described.rines (i ure located in the openings Il, end are provided with pressedthreads adopted to enengethe lthrends' of the usual use plugs. lenenying o provided at one side and ut its inner end with n metallic shank7. rllhe hlocl; l is proritilcd :it its outer side sind :it its end withgrooves t# in whicli pluies f2 ure ioreted. .Posts l() :ire connected tothe plates :uid wires muy he connected with ,Quid .Losts und led tolights or other li);- tures which nre to he .supplied with the cnrrent.lif desired switches nitty be provided for cutting' nii' the current tothe said wires. Strips l are embedded in the block und urey connected:it their inner ends with the slinuhs or the innermost rings 6 by ineensolf screws l2 or other suitable devices. Screws t3 pass transverselythrough the block l und ere connected :it their inner ends with theShanks T olf the outer test rin; und the outer ends oi' 'the stri -s ll,and the outer portions of the seid screws 13 nrc connected with theplates 9. The bus lmrs' und hns lmr sections muy be connected with.circuit curi-ying currents ol' high und low voltage :ind they muy alsobe connected with direct or alternating circuits. 'ihere- Atore it wille seen thut u fuse plug hloelr; ol .simple Structure provided und that,the suine occupies hut little space when mounted upon :i punel, undthefcurrent is tinnsinitted in e direct inunner troni the bus lmrs tothe wires,y which convey the current through the light-r er otherfixtures.

litri/'iney described the invention Whetis clninied, iS:-

fr fuse block comprising n. body providedl upon its underside withtruiirsversoly dis posed f rooves, ons 'bar sections located in' seidgrooves, said body haring openings passing transversely therethrough andceinniunieetnig et their inner ends with said sie grooves, rinfrslocated in the openings and In testimony whereof I aix my signahav'mgshancs which are embedded in the ture in presence of two witnesses.

v}; 1ocl, s't`rps connected with the Shanks of CHESTER N. JOHNSON.

the innermost rings and also embedded in the "blok, and means foreonneting said Witnesses:

stri s and the Shanks of the outermost ring JOHN F. VOIGT,

wit terminye t the outer side of the block. HARRY B. THOMPSON.

